function mySearch(){

	$.getJSON("data/data.json",function(data){
		   $("#message").empty();
		   $("#message").append("<tr><th>时间</th><th>地点和跟踪进度</th></tr>")
           $.each(data,function(index,message){
                $("#message").append("<tr><td>"+message["time"]+"</td><td>"+message["message"]+"</td></tr>");
           });  
	});
}